One death occurred while a man was cutting firewood on his property. The remaining two incidents were industrial accidents, the California Occupational Safety and Health Administration confirmed Monday.

"Cal/OSHA has opened an investigation for both of those cases, and the investigation is ongoing," spokeswoman Kathleen Hennessy said. "We're still awaiting the accident reports."

At about 4 p.m. Friday, Thomas Alan Rea, 66, of Garberville, was cutting firewood when a log apparently shifted and struck him, Van Buskirk said. His wife found him without a pulse after searching the property when she was unable to contact him.

CalFire and an ambulance responded, and declared Rea deceased, according to the coroner's office. Van Buskirk said the cause of death was blunt force trauma.

Later that day -- around 8:30 p.m. -- a woman reported that her husband had failed to return home from work cutting timber. Co-workers conducted a search for William Stanley Thomas, 53, of Mad River, and found him dead at a logging site on Sierra Pacific Industries land off Stapp Road in Kneeland, according to the release.

Thomas, who had about 30 years of experience, was felling a large fir tree when he was struck by a rotting black oak tree about 20 feet uphill that fell for unknown reasons, according to the coroner's office.

"It appears the tree that struck him, pinned him to the ground and he was able to extricate himself from under the tree and made it a very short distance before succumbing to his injuries," Van Buskirk said. "I'm not sure yet where he was struck. I didn't see an obvious cause for his death."

An autopsy is scheduled for Thursday.

At about 11:30 a.m. Saturday, Jason Danial Nelson-Meng, 23, of Eureka, was working as a logger about 10 miles southeast of Elk River Road when he was struck on top of the head by a 40-foot tall redwood tree that fell when it was hit by a log that was being moved up a hill, according to officials.

"He thought he was in a safe location," Van Buskirk said. "The other loggers saw it happen, and immediately went to his aid and tried to help him."